CA1062432A

CA1062432A - Lamellae construction for walls or ceilings

Info

Publication number: CA1062432A
Application number: CA283,777A
Authority: CA
Inventors: Johannes A.H. Brugman
Original assignee: Hunter Douglas Canada Inc
Current assignee: Hunter Douglas Canada Inc
Priority date: 1976-08-03
Filing date: 1977-07-29
Publication date: 1979-09-18
Also published as: NL179603B; MY8100300A; JPS6017815U; AU503533B2; CH619282A5; US4095385A; NZ184790A; FR2360721B1; NL7708406A; HK29481A; AT366136B; PH14863A; NL179603C; DE2634774C2; JPS5325024A; ES461279A1; DE2634774A1; GB1566813A; FR2360721A1; BE857172A

Abstract

DEVICE FOR SECURING PANELS IN A
SUSPENDED CEILING OR WALL CONSTRUCTION
ABSTRACT
The invention concerns a device for securly fasteninq panels of a suspended wall or ceiling construction having in-turned flanges at the sides of the panels, panel supports running transverse to the panels, hooks on the panel supports, on which hooks the flanges of the panels rest, and locking members posi-tioned between each two adjacent panels to insure firm securement.

Description

BACKGF~OUND OF THE_INVENTION
Panels havinq in~turned flanges alona their lateral 10 sides engaged in hooks of transverse s~pports are not always 11 secured solidly enough to insure that the attach~ent will with-12 stand all conceivable loads. There are nu~erous instances in 13 which external forces may cause the panels to become detached - 14 from the panel supports, particularly as a result of separation 15 of the in-turned flanges.
16 In order to prevent thisr there has hitherto been 17 arranged a clamp, or locking member, in the space between two 18 adjacent panels, which clamp extends from one panel to the other 19 and acts as a spacer to prevent separation of the flanges and i~" 20 consequent detachment of the panels. The clamp has taken the 1' 21 form of a spring clip, which by reason of its resiliency can ~- 22 be hooked on the edges of the panel support. This hooking, how-;-~ 23 ever, has not always been reliable, so that accidental detachment ~' 24 of the spring clip is actually possible. In addition, panels ~; 25 ith this type of attachment can not be attached such that rat-26 ling as a result of vibrations or the like, can be prevented 27 ith any certainty.
'i 2 Vibration of the panels and their movement with respect ,'i~t 29 o the panel supports accordingly, has not been adequately elimin-ted.
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¦ Even i~, specifically~ the dis~anee between each hook

2¦ and the panel suppoLt is made as close as possible, this distance 31 nust nevertheless remain at least great enough for the in-turned 41 flanges of the panel support to be sli~ped over the hooks with 51 suf~icient ease. In such event, enough clearance still remains 61 that external influences such as vibration, may set the panels ¦ into rattling.
8 ¦ SUMMARY o~ THE INVENTION
gl Accordingly, one object of the invention is to provide lO¦ a device that not only is quick and simple to attach between lll panels to insure a~ainst dislodgement of the panels, but also 12¦ to provide a device that achieves reduction of the movement and 13¦ rattliny of the panels against the panel supports.
14 In one aspect, the invention provides a l51 suspension system for mounting panels to a l6¦ generally planar surface of a building comprising a plurality 17 o~ elongated, generally parallel panel supports; each of said 18 panel supports being supported by said sur~ace; an elongated l9 panel; said panel having along each longitudinal si~e thereof an in-turned flange facing the in-turned flange ~f the opposite 21 side; ~he material of said panel being sufficiently resilient 22 to permit said flanges to be sprung apart, said panel being arranged with its length substantially transverse to the 24 length of the panel supports; said panel supports having hooXs;
~he flanges of said panel being engaged over said hooks; a 26 locking member having a body portion with two ends; said lock-27 ing member being positioned adjacent a longitudinal side of 28 a panel with one end bearing against a panel support; said one 29 end having a laterally extending arm; said locking member being 50 ~rotatable to rotate said arm between unlocked and locked posi-tions; said arm, when in locked position, extending over and bearing firmly against an in-turned flange of a panel to press said flange securely against its associated hook.

. . r~ ~ 2 62~32 It will be seen that the invention provi~s ~ t the lo~ng member for use in the space formed bet~een two adjacent panels be supported rotatably on the panel su~port and have at least one arm which engages, by reason of the rotary motion, between the panel support and the in-turned flanges and further that the locking member be locked in this position of engagement in relation to the panel support.
The arm of the locking member after one-quarter rotation engages the flange of a panel engaged over the associated hook in such a manner that the panel flange not only rests on the hook but in addition is pressed against the hook by the arm of the locking member. Such a solid connection is thereby pro-duced between the panel supports and the panels that even if subjected to fairly strong external forces, such as jarring, they do not vibrate.
~ escribed below are certain particularly advantageous embodiments of the invention in one of which the locking member :, :.,

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` ~`" ~IL062432 1 has a center portion designed for the reCeipt Of a tUrninq tool 2 and two radially, diametrically outwardly extending arms.
3 In this embodiment the locking member can easily be

4 inserted into the Space between two adjacent panels at the level

5 of the associated hooks, while the center portion serves as a

6 spacer and presses apart the panels engaged over the hooks.

7 The arms of the lockinq member are enga~ed with a rotary motion

8 over the in-turned flanges of the panels, so that the latter

9 are pressed tightly aqainst their respective hooks. The locking 1 member is thus supported on the panel support.
1 It is advantageous if the arms of the locking member 1 form a flange-like end piece of the same. It is further expedient 15 if between the Center portion of the end piece of the locking 1 member and the panel support there is provided a guide formed 1 of a projection and a depression. This ~uide serves to hold 1 the locking member in its place and also to guide it during the 17 rotary motion of assembly. It iS also advantageous if the panel 1 support has a web engaging in an approximately circular depression 1 of the center portion of the end piece. Said web provides suffi-20 Cient guldance and requires no particular effort in production.
21 In addition, such a web when in clamped position en~ages in a .
depeession formed in the end pieCe. As such, the web secures 23 the locking member, when the latter iS in its clamped position, 24 eVen aqainst twisting. Disassembly iS facilitated if the walls 25 Of the slot are beveled.
2 It iS moreover advantageous to use a panel support 27 having an approximately U-shaped Cross-section and, at the outer 2 edges of the tWo side walls Of the panel sUpport, to desiqn cut-ou~
2 ortions lying in the plane Of the wall and providing hooks.
¦¦~hese hooks ac~ordi ng ly be formed, without additional opera- ¦

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1 tion~" simultaneously with manufacture of the panel support and 2 wi~h no additional work being requieed.
3 In a modified embodiment the U-shaped panel support 4 has, in a plane parallel to that of the panel and preferably 5 bent over outward, side flanges which serve as bearing surfaces for the locking members and which may be provided with openings for stops provided on the lockin~ member.
8 In other respects the center portion of the locking g member should have a cross-section sized great enough substantiall Y
to fill up, at least in the locked position, the space between 11 two adjacent panels. The panels are in this way also held from 12 the side and made secure against loose fit or rattling.

_ __ 14 The invention is described in greater detail below 15 and shown in the accompanying drawings, in which: ;
16 Fig. 1 is an underside plan view of a portion of a 17 ceiling incorporating the invention, 18 Fig. 2 is an enlarged vertical section along line 2-2 19 of Fig. 1, ; Fig. 3 is a vertical section along line 3-3 of Fig. 1, 21 Fig. 4 is a vertical section through the panels showing 22 the locking member in locked position and also showing how the locking member is used at the end of a panel support adjacent 2~ to a wall, 251 Fig. 5 is a plan view of the locking member, 26 Fig. 6 is a side view of the locking member partly 27 in section, 28 ¦ Fig. 7 is an underside plan view of the locking member, 29 ¦ Fig. 8 is an underside perspective view of a panel support or which the modLfied locking member shown in Figs.

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1 9-12 is provided, 2 Fig. 9 is a view similar to Fig. 4 but showing the 3 modified locking member in use with the panel su~port of Fig. 8, 4 Fig. 10 is an underside plan view of Fiq. 9 showinq 5 the modified locking member before being rotated into locked position, 7 Fig. 11 is a view like Fig. 10 but showing the modified 8 locking member in locked position, 9 Fig. 12 is an enlarged elevational view, partly in

10 section, of the modified locking member of Figs. 9 through 11,

11 and

12 Fig. 13 is a modified form of the locking member of

13 Fig. 12 shown in locked postion between two adjacent ~anels.

14 In the embodiment of Figs. 1-7, a panel support 10

15 is attached in suitable fashion to a wall or ceiling 9 in any

16 suitable manner, a screw being shown. Alternatively, the panel

17 support 10 may be suspended from the ceiling 9 by suspension

18 wires passing through openings 3 in the panel support 10 in well

19 known manner.
The panel support 10, as may be seen especially in 21 Fig. 3, is approximately U-shaped in cross-section, while the 22 two side walls, at their free lengthwise edges have formed therein 23 the hooks 11. The latter lie preferably in a plane with the 24 associated side wall 8 of the panel support 10 in each instance 2S and otherwise are sized and sha~ed in such manner that in-turned 2~ flanges 12 along the lengthwise edges of panels 13 may be enqaged 27 over them. By reason of the resiliency of the panels 13, the 28 tlanges 12 can be sprung far enough apart so that the flanges 29 12 may engage over the hooks 11 in the spaces 6 defined by the 30 hooks 11 and edges 7 of cut-outs in the panel suppor~s 10.

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,. , 1~62432 1 Lockin~ members 14, the desiqn of whlch is best shown 2 in Fiqs. 5-7, serve for securing the panels 13 in their position 3 of attachment. Each lockin~ memher 14 has a center portion 15 4 of approximately cylindrical~dimensions and, at one end of the 5 latter, two diametrically opposed arms 16 forminq an end piece 6 of the locking member 14. This end piece has an aPproximately 7 circular recess or depression 17, the depth o~ which may be rela~
8 tively shallow. At the center of the depression 17 and in longi-9 tudinal alignment with the two arms 16 runs a slot 18, which 10 is essentially a groove in the depression 17 and whose side walls :
11 are beveled such that the cross-section of the slot 18 widens 12 upward approximating a V-shaped.
13 At the opposite end the locking member 14 is provided 14 with a circular depression 19 with a central bore 20 and a slot-lB shaped recess 21 such that a turning tool such as a screw driver 16 may be inserted to rotate the locking member 14. Cross-sections 17 of different shape may be used for correspondingly shaped tools.
18 The panel support 10 has at its lengthwise edges, in lg each instance between two hooks 11, the tips of which pQint toward

20 each other, a web 22, which rests at the central axis of the

21 recess or cut-out formed between the two hooks 11 at the center

22 of the span thereof, which forms the clearance between two adjacen

23 panels 13. The length of the web 22 is sized such that the latter

24 ~its into the depression 17 in the end-piece of the locking member

25 14. The latter is therefore guided by cooperation of the web 2~ 22 with the depression 17 during the ro~ary motion as shown by 27 the le~t hand locking member in Fig. 3. Later the locking member 28 14 is held in a fixed location in the locked position against 29 the panel support 10 by engaqement in the slot 18 as shown by ~he 30 right hand locking member 14 in Fig. 3.

1 In assembling the panels 13, the latte~ are accordinqly ..
2 first engaged over the hooks 11 on the panel support 10, so that 3 they assume the position shown in Figs. 1 and 2. Locking membe~s 4 14 are then inserted with the arms 16 parallel with the side edges of panels 13 as shown by the unlocked member 14 in the 6 upper left of Fig. 1 (also shown in Fig. 2 and to the left in .:
7 Fig. 3). The locking membees 14 are inserted until the web 22 8 engages depression 17 and then turned 90. It will not always 9 be necessary to set a locking member 14 on each available web 10 and there clamp the panels 13 on the hooks 11. An even distribu-11 tion of the locking members 14, such as alternately in staggered 12 arrangement, as shown in Fig. 1, usually suffices.
13 Rotation of the locking members 14 causes the arms 16 to .
1 engage in the space 6 where they press the flanges 12 firmly onto 15 the hooks 11. At the same time the slot 18 in the depression 17 16 arrives at a position in alignment with to the associated web 22 s 1 that the latter may engage in the slot 18. By this means the lock 1 ing member 14 is secured against further rotation. This locked 1 position is shown in Fig. 1 for the lower right hand locking membe ..
20 14 and is also shown to the right in ~ig. 3 and in Fig. 4. As the ..
2 walls of the slot 18 open obliquely upward and outward, further.
22 rotation of the locking member 14 in either direction by use of a 25 suitable tool is possible without difficulty if disassembly is 2 desired.
The right-hand side of Fig. 4 shows the end of a panel 2 support 10 against a wall 5. In this latter region of attachment, 28 however, only one panel 13 is held with the ald of the locking 2 membet 14..
3 . In order to achieve even and reliable fit of the lockin~
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- 1 member 14 at this position, one of the arms 16', which does not 2 have an associated panel 13, is bent downward as shown in ~ig. 4, 3 50 that it maintains the locking member 14 in a straight or up-4 right position even though resting directly on the bearing surface 5 at the hook 11. When the locking member 14 is manufactured, for example, of synthetic material, heating to the necessary r extent may take place before the bending of said arm 16', or the :
8 system may use two types of locking members 14, one with the 9 arms 16 in the same plane and one initially formed with one bent arm 16'.
11 In the modification of Figs. 8-12, there is shown 12 a panel support 23 whose approximately U-shaped cross-section 13 is now supplemented by two side flanges 23a bent outward in a 14 plane parallel to that of the panel 13; the said flanges 23a form bearing surfaces for locking members 24, while hooks 25 16 have been produced for example, by punching out and bending over 17 the side flanges 23a at spaced points therealong, thus forming 18 openings 23b in the side flanges 23a.
19 The locking member 24 likewise again has a center portio

26 and two arms 27 corresponding to the locking member 14. The 21 :end of the locking member 24 facing the panel support 23, however, 22 has in the region of the center portion 26 a centering pin 28, 23 which engages in a bore 29 correspondingly sized and arranqed 24 in the side flange 23a, in such manner that it forms an axis 25 of rotation for the locking member 24. This end of the locking ...
28 member 24 is additionally provided with an annular shoulder 30

27 surrounding the centering pin, which shoulder serves as a spacer

28 and causes the center portion 26 of the locking member 24 to

29 remain a selected distance from the side flange 23a. As a result,

30 the arms 27 are capable of bending resiliently upon engag~ng -` ~06243Z

1 hetween the in-turned flanges 12 and the side fl~n~e 23a. The 2 pressing action of the arms 27 is thereby improved, while at S the same time the friction during rotation o~ the locking members 4 24 is somewhat reduced.
At their ends the arms 27 are provided with stops 31.
6 The latter are formed by notching the edqe of each arm to provide 7 a notch 31' lying in the plane of the drawing in Figs. 10 and 8 11 then bending (downward in Figs. 10 and 11~ obliquely at one 9 edge of the notch~ These stops 31 engage in recesses or openings 10 in the panel support 23, which may preferably be the same openings 11 23b in ~he side flanges 23a, produced by the formation of the 12 hooks 25. The stops 31, by reason of their above-described shape, 13 have a certain resiliency, so that it is always possible to releas~ ?
14 the locking member 24 by rotation in a direction opposite of 15 that of the arrow in Fig. 10. In Fig. 10 the locking member 16 24 is shown in an initial position, in which it rests against 17 the side flanges 23a, while the locked position is shown in Fig.
18 11, after a rotation of 90 in the direction of the arrow of 19 Fig. 10.
It is, however, possible to provide a locking mechanism Zl formed here by the stops 31 alternatively by other means, for 22 example by producing (such as by embossing) projection-like eleva-23 tions which may engage in associated depressions, wherein it 24 is immaterial whether the depressions or the projections are 25 provided in the edae flange 23 and in the locking member 24, 26 respectively, or vice versa.
~7 The center portion 26 of the locking member 24 is pro-28 vided with a recess or depression 32, which by reason of its 29 shape is suitable for receipt of a turning tool The shape of 50 the depression 32 may be selected such that it i5 suitable :-1 selectively ~or the application o a screw driver, allen wrench, 2 or the like. :
3 The depression 32 may, however, also be bored through 4 or have only a very thin bottom partition, so that the insertion 5 of a screw 33 is possible (see Fig. 13). The latter may, for 6 example, be designed as a self-tappinq screw and be fixed by 7 tightening in a corresponding bore in the edge flange 23a.
8 It is entirely within the sco~e of the invention, how-9 ever, to use locking members having only one arm and, for example, to attach in the region of attachment of two adjacent panels, at 11 a particular spot of a panel support, one panel with one locking 12 member and the other panel with another locking member each with 13 only one arm. The operability of the locking member is in any 16 case assur , even without the second arm.

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Claims

CLAIMS:

1. A suspension system for mounting panels to a generally planar surface of a building comprising a plurality of elongated, generally parallel panel supports; each of said panel supports being supported by said surface; an elongated panel; said panel having along each longitudinal side thereof an in-turned flange facing the in-turned flange of the opposite side; the material of said panel being sufficiently resilient to permit said flanges to be sprung apart; said panel being arranged with its length substantially transverse to the length of the panel supports; said panel supports having hooks the flanges of said panel being engaged over said hooks; a locking member having a body portion with two ends; said lock-ing member being positioned adjacent a longitudinal side of a panel with one end bearing against a panel support; said one end having a laterally extending arm; said locking member being rotatable to rotate said arm between unlocked and locked posi-tions; said arm, when in locked position, extending over and bearing firmly against an in-turned flange of a panel to press said flange securely against its associated hook.

2. The suspension system of claim 1 in which said one end of said locking member has a generally circular de-pression therein, an elongated groove in the bottom of said depression, a guiding and locking element extending toward said locking member from said panel support, said element being dimensioned to fit into said groove when said arm is in said locked position, and said element guidingly engaging in said depression in all positions of said arm other than said locked position.

3. The suspension system of claim 2 in which said hook and said guiding and locking element are of such shape, dimension and relationship as to permit their formation by a single manufacturing operation performed on said panel support.

4. The suspension system of claim 2 in which the sides of said groove diverge outwardly to facilitate entry and exit of said element in said groove during rotation of said locking member.

5. The suspension system of claim 4 in which a pair of panels are supported from said panel supports with their in-turned flanges engaged with hooks and with their adjacent sides spaced apart, the body portion of said locking member is positioned in said space between said adjacent sides, and the dimension of said body portion is such as to bear against both of said adjacent side edges when said arm is in locked position.

6. The suspension system of claim 5 in which said one end has a second laterally extending arm extending out-wardly therefrom in a direction opposite to said first men-tioned arm, and when said arms are in locked positions said first arm bears against an in-turned flange of one of said pair of panels and said second arm bears against an in-turned flange of the other of said pair of panels to hold said flanges against their respective hooks.

7. The suspension system of claim 6 in which the length of said groove is substantially in alignment with the length of said arm.

8. The suspension system of claim 7 in which the end of said locking member opposite said one end has means for engagement by a turning tool for rotating said locking member.

9. The suspension system of claim 1 in which said panel support and said locking member each have a locking ele-ment, said locking elements being mutually engagable for releasably locking said locking member in locked position.

10. The suspension system of claim 9 in which the locking element of said panel support includes an opening in said panel support, the locking element of said locking member comprises a stop, and said stop being engaged in said opening in the locked position of said locking member.

11. The suspension system of claim 10 in which said stop is positioned on said arm.

12. The suspension system of claim 11 in which said arm is of metal and said stop comprises a notch in said arm and a portion of the margin of said notch is bent out of the plane of said arm.

13. The suspension system of claim 11 in which said stop includes a tapered ramp to permit unlocking said locking member.

14. The suspension system of claim 1 in which said arm is resilient, a shoulder on said one end of said locking member, and said shoulder bears against said panel support for increasing the pressure of said arm against its associated in-turned flange.

15. The suspension system of claim 14 in which said panel support has an opening therein, and said one end of said locking member has a post extending therefrom and through said opening in said panel support for guiding rotation of said locking member.

16. The suspension system of claim 14 in which said panel support has an opening therein, and said one end of said locking member has a screw extending therethrough and engaged in said hole in said panel support.